from tkinter import *
print('Введите начальную координату X:')
X = int(input())
print('Введите начальную координату Y:')
Y = int(input())
print('Введите начальную координату N:')
N = int(input())

coords=[0, 0, 10, 0, 10, 10, 20, 10, 20, 30, 10, 30, 10, 20, 0, 20]

if N == 0 and X>=0 and X<=500 and Y<=500:
    pass
else:
    if N > 0 and 0*N+X>=0 and 20*N+X<=500 and 20*N+Y<= 500:
        pass
    else:
        if N < 0 and 20*N+X>=0 and 20*N+Y<=500 and 0*N+Y<= 500 and 0*N+Y<=500:
            pass
        else:
            print('Фигура привышает максимальный размер поля')
            exit()

root = Tk()
root.title("ИТ марафон")
root.geometry('500x500')

canvas = Canvas(bg= "White", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)

canvas.create_polygon(coords [0] *N+X, coords[1] *N+X,
                      coords [2] *N+X, coords[3] *N+X,
                      coords [4] *N+X, coords[5] *N+X,
                      coords [6] *N+X, coords[7] *N+X,
                      coords [8] *N+X, coords[9] *N+X,
                      coords [10] *N+X, coords[11] *N+X,
                      coords [12] *N+X, coords[13] *N+X,
                      coords [14] *N+X, coords[15] *N+X)

root.mainloop()
